| 摘要 |
A monitoring device ( 1 ) for monitoring the electrical properties of a medium voltage overhead line ( 3 ) in a medium voltage network comprises three separate measurement sensors ( 2 a, 2 b, 2 c), each being adapted for direct connection onto a medium voltage overhead line. Each of the measurement sensors has means to draw operating power from the medium voltage overhead line. The measurement sensors measured results may be combined for accurate measurement analysis.
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